Code:
void Init(void)
{
	//-------- serial interface programmed in boot routine and already running -------
	//  prepare 36kHz for IR - Communication
	TCCR2 = (1 << WGM20) | (1 << WGM21) | (1 << COM20) | (1 << COM21) | (1 << CS20);
	OCR2  = 0x91; // duty cycle for 36kHz
	TIMSK |= (1 << TOIE2); // 36kHz counter for sleep
	
	// prepare RS232 
	UCSRA = 0x00;
	UCSRB = 0x00;	
	UCSRC = 0x86; // No Parity | 1 Stop Bit | 8 Data Bit
	UBRRL = 0xCF; // 2400bps @ 8.00MHz
Ist das nicht die initialisierung für UART???